Unlockable Dogs:
Pinscher - Collect 14000 Owner Points
German Shepherd - Collect 17000 Owner Points
Schnauzer - Collect 10000 Owner Points
Shetland Sheepdog - Collect 8000 Owner Points
Pug - Collect 4000 Owner Points
Welsh Corgi - Collect 2000 Owner Points
Jack Russel Terrier - While on a walk, your dog may come across an Item called the Jack Russel Book. If you visit the kennel, you can now buy the single Jack Russel Terrier
Japanese Style House (from Shiba Pack) - 20000 Owner Points
Toy Poodle - 25000 Owner Points

Unlockable Dogs (US Version):
Once you accumulate the proper amount of Owner Points, new dogs will be added to the Kennel for you to buy and take care of.

Pinscher - Collect 2000 Owner Points
Siberian Husky - Collect 4000 Owner Points
Toy Poodle - Collect 8000 Owner Points
Golden Retriever - Collect 10000 Owner Points
Miniature Schnauzer - Collect 14000 Owner Points
Dalmation - Find an item called "Fireman Hat"
Beagle - 16,000 trainer points
Welsh Corgi - 20,000 trainer points
Shih Tzu (dog) - 22,000 trainer points
Shiba Inu (dog) - 30,000
Pug (dog) - 35,000
Labrador Retriever (dog) - 45,000
Dachshound (dog) - 50,000
Jack Russel Terrier - While on a walk, your dog may come across an Item called the Jack Russel Book. If you visit the kennel, you can now buy the single Jack Russel Terrier

Unlockable Rooms (US Version):
Once you accumulate the proper amount of Owner Points, new room will be added to the Interior Decorator for you to purchase.

Urban Living - Earn 25000 trainer points
Desktop - Collect 6000 Owner Points
Seaside - Collect 12000 Owner Points
Space - 18,000 trainer points
Ranch House - 40,000 Trainer Points

Eat the lightbulb:
When your dog is learning a command, ex:lay down,roll over. A lightbulb icon appears in the top right corner of the screen. Click on the light bulb and record your command. If the dog accepts the command, a sketchy like lightbulb appears over their adorable little head. Grab the lightbulb with your stylus then drag it to the dogs mouth. And they will EAT THE LIGHTBULB like a treat! This also works with bone icons too.

Dog or present:
When walking your dog, if he/she comes upon a ? mark, he/she will bark once, or twice. Most of the time, one bark means a present, two barks means another dog.

Easy way to find hidden presents:
When going on a walk, watch the top screen. When the dog icon stops moving, there is a hidden present coming up shortly. Be cautious, however, as this is also true when garbage is coming up, or your pup simply stops by itself.

Get unlockable breeds easier:
Do Bark Mode with a dog in a breed that you don't have.

Example: Do Bark Mode with a Shih Tzu and after you do Bark Mode with that dog, you will be able to buy the Shih Tzu breed at the kennel.

NOTE: This only works the first time with each different version of the game. So you can do this trick one time with Labrador & Friends, Dachshund & Friends, and any other version of Nintendogs.

Walk without waiting 30 minutes:
To do this trick, make sure you have an Asscessory on you. Select which dog you want to walk with. While planning the route for the dog, go through as many[?] blocks as possible. Once you have done that, make your way to the park, then back to your house. When your dog starts the walk, when it gets to the park change the accessory it's wearing into something else. After the game finishes saving, turn off your Nintendo DS. When you reboot you will notice that you have obtained all the items you did in the walk, and you can walk again with the same dog without the wait. Do this for present abuse!